BUY CXA3809 https://www.utsource.net/itm/p/1870933.html
RX Gain Control Amplifier
Description: CXA3809 is a high-performance, low-power, low-noise, low-distortion, stereo audio power amplifier IC. Features: Low-noise, low-distortion audio power amplifier High-performance, low-power consumption Low-voltage operation (2.5V to 5.5V) Built-in thermal shutdown circuit Built-in mute circuit Built-in standby circuit Built-in overcurrent protection circuit Built-in short-circuit protection circuit Built-in thermal protection circuit Built-in overvoltage protection circuit Built-in undervoltage protection circuit Built-in overheat protection circuit Applications: Portable audio devices Mobile phones Digital cameras Portable media players Portable game consoles Portable DVD players Home audio systems (For reference only)